20151226 One question per day

For rooms that require accurate color recognition and high color rendering, which of the following light sources should be used? (A) A. Metal halides B. Sodium lamps C. Fluorescent lamps D. Incandescent lamps

For rooms where accurate color recognition and high color rendering are required, which of the following light sources should be chosen (D)? A. Metal halides B. Sodium lamps C. Fluorescent lamps D. Incandescent lamps

For rooms that require accurate color recognition and high color rendering, which of the following light sources should be used? (A)

 B. Sodium lamp speed-----------------------

For rooms that require accurate color recognition and high color rendering, which of the following light sources should be used (D)? A. Metal halides B. Sodium lamps C. Fluorescent lamps D. Incandescent lamps

For rooms that require accurate color recognition and high color rendering, which of the following light sources should be used? (c) C. Fluorescent lamps

For rooms where accurate color recognition and high color rendering are required, which of the following light sources should be chosen (D)? A. Metal halides B. Sodium lamps C. Fluorescent lamps D. Incandescent lamps – Basic characteristics, functions, and application areas of electric light sources. 1. Ordinary incandescent lamps: Suitable for applications that require dimming, high color rendering, quick ignition, frequent switching on and off, as well as situations where it is necessary to avoid high-frequency interference with testing equipment, such as in shielded rooms. Due to its small size, the ability to produce it in various power specifications, easy light control, lack of additional accessories, and pleasant light color, it is particularly suitable for artistic and decorative lighting. Low-power spotlights are also suitable for window display lighting and exhibition lighting in art galleries. Suitable for emergency lighting. Due to their low light output, short lifespan, high power consumption, and high maintenance costs, incandescent lights are not suitable for use in lighting factory workshops where long-term operation is required. 2 Fluorescent lamps: Suitable for tasks that require precision, accurate color recognition, high levels of illumination, or long periods of intense visual work; it is advisable to hang them at a height of less than 4 meters. Daylight-colored fluorescent lamps are suitable for lighting rooms with natural light or areas where a comfortable environment is desired. Fluorescent lamps are not suitable for areas where the lights are turned on and off frequently, nor for indoor or outdoor environments with excessively high or low temperatures. 3 Tungsten halide lamps: Suitable for locations where high illuminance, good color rendering, or dimming is required, such as sports stadiums, convention halls, and banquet halls. Its color temperature is particularly suitable for studio lighting in color televisions. Due to its high operating temperature, it is not suitable for dusty, flammable, explosively hazardous, corrosive environments, as well as areas with vibrations. Quartz focusing halogen tungsten lamps are used in focusing or reflector lights for film, television, and stage lighting. 4 Fluorescent high-pressure mercury lamps: Suitable for large factories and outdoor areas where a high or moderate level of illumination is required. Fluorescent high-pressure mercury lamps can be used in areas where high color rendering is not required, but the illuminance should not be lower than 30 lx. Mixed lighting is recommended, as it allows for high luminous efficiency and improves the color of the light; this is suitable for places such as stadiums and large factories with high ceilings. Suitable for street lighting, suburban roads, and factory premises roads. Suitable for large-area indoor and outdoor lighting. 5 Metal halide lamps: Suitable for locations that require high illumination levels and good color rendering, such as stadiums, art galleries, and exhibition halls. Using mixed lighting can achieve high luminous efficiency, and the color of the light can also be improved. Suitable for street lighting and lighting in busy streets. Spotlights or high-mast lighting; high-mast lighting can be installed at overpasses, squares, stations, docks, and other locations. 6 High-pressure sodium lamps: Suitable for large factories, airports, ports, stations, stadiums, and outdoor areas where a high or moderate level of illumination is required. Mixed lighting should be used, as this allows for high luminous efficiency and also improves the color of the light. Suitable for street lighting in urban areas. Spotlights or high-mast lighting; high-mast lighting can be installed at overpasses, squares, stations, docks, and other locations.

For rooms where accurate color recognition and high color rendering are required, which of the following light sources should be used? (C. Fluorescent lamps)